Time-controlled advertising device.



F. R. & C. P. DAVIS.

- TIME CONTROLLED ADVERTISING DEVICE.

' APPLICATION FILED MAR. 16. 1914.

1.138.090. Patented May 4,1915.

2 SHEETS-SHEET 1- 10 'fn esses. V I J1 we'rzfa r 4% 4 Mw .QMQMWW F. R. & C. P. DAVIS.

TIME CONTROLLED ADVERHSING DEVICE.

' APPLICATION FILED MAR. 16. 1914.

1,138,690. Patented May 4, 1915.

2 SHEETS-SHEET 2.

FRANK R. DAVIS AND CURTIS P. DAVIS, 0F DES MOINES, IOWA.

TIME-CONTROLLED ADVERTISING DEVICE.

Application filed March 16, 1914. Serial No. 825,163.

To all cvlzom it may concern:

Be it known that we, FRANK R. DAVIS and CURTIS P. DAVIS, citizens of the United States, and residents of Des Moines, in the county of Polk and State of Iowa, have invented a certain new and useful Time-Controlled Advertising Device, of which the following is a specification.-

The object of our invention is to provide a time controlled advertising device of simple, durable and inexpensive construction, including a roll or strip of flexible material adapted to have advertising matter printed or otherwise displayed thereon, and adapted V to be used with ordinary clock mechanism for periodically displaying difierent parts of said roll or strip.

Still a further object is to provide such a device adapted to be used as an attachment for an ordinary clock mechanism of the type used in a striking clock.

Still a further object is to provide such a device including means whereby the time keeping part of the clock mechanism is rendered inaccessible to the winding key when the spring which controls the flexible strip is unwound, said parts being so constructed and arranged that when said spring is wound. up access may be had to the shaft for winding the time keeping mechanism.

Uurinvention consists in certain details, in the construction, combination and arrangement of the various parts of the device whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in our claims and illus trated in the accompanying drawings, in which:

Figure 1 shows a front elevation of the mechanism of our improved device, the easing being removed. Fig. 2 shows a front elevation of" the completed device. Fig. 3 shows a front elevation of part of the mechanism, part of the frame members being removed for greater clearness, and parts being shown in section, and Fig. 4 shows a side elevation of part of the mechanism, taken at right angles to the view shown in Fig. 1, part of the supporting casing being shown in section.

In the accompanying drawings, we have used the reference numeral .10 to indicate 7 generally the casing of a clock, having a face 11. In the lower front of the casing is an opening 12, preferably-covered with Specification of Letters Patent.

Patented m a, 1915.

vided with anordinary shaft 16, having an angular end to receive a key for winding the time keeping part of the mechanism. Said mechanism also includes the shaft 17,'having an angular end to receive a key for winding the striking part of the mechanism. Mounted on the shaft 17, instead ofthe ordinary wheel which is used in striking clocks, is a wheel 19, having at regular intervals in its periphery notches 20. The ordinary catch device 21 is employed for entering said notches. Mounted on the shaft 17 is a gear wheel 22. Wound on said shaft and secured thereto and also to the frame of the device is a convolute spring 23. Mounted in the frame 14, near the gear wheel 22, is a horizontal shaft 24, preferably arranged substantially parallel with the shaft 17. On the shaft 24 is a gear 25 in mesh with the gear 22. On the shaft 25 is also located a crown gear 26. Suitably mounted on the frame is an upright shaft 27, on which is a gear 28 in mesh with the teeth of the gear 26. Mounted inthe lower portions of the casings are two pairs of adjustable bearings 29, the members of each pair being arranged in vertical alinement with each other. Received between the bearings of each pair is a shaft 30. Mounted on the shafts 30 are spools or drums 31. Mounted on the lower end of the shaft 27 are sprockets 32 and 33. Mounted on the shafts 30 are sprockets 34 and '35 which are in line respectively with the sprockets 32 and 33. A sprocket chain device is designed to be used with the ordinary type of spring controlled clock mechanism. The parts are so arranged that at the end of each predetermined period, say one hour,the catch device 21 is raised and the spring 23 unwinding rotates the gear 22 and thereby operates the mechanism connected therewith for moving the strip 36 a suflicient distance for causing one display of advertising to pass away from the opening 12 and to cause the next successive-display to pass to a position where the second display registers with said opening.

In order to make it necessary to wind the mechanism which controls the advertising strip when the clock is wound, I have provided the following mechanism. Centrally pivoted on the frame 14, between the shafts 16 and 17, is a bell crank lever 38, one arm of which stands adjacent to the spring 23 and the other arm of which is curved outwardly and carries a plate 39. The arms of the bell crank lever 38 are so constructed and arranged that when the spring 23 is unwound or expanded, the plate 39 stands in front of the end of the shaft 16 and prevents access thereto through the suitable opening 40 in the clock face, through which the key is ordinarily inserted. When, however, the spring 23 is wound up by rotating the shaft 17 by means of the key inserted through the opening 41 in the clock face, the weight of the plate 39 causes it to be lowered and the fact that the spring 23 is wound into a small space permits the arm adjacent to said spring to rise until the plate 39 drops below the level of the shaft 16. The time keeping mechanism can then be wound in the ordinary way. Fig. 3 shows the position of the plate 39 when the spring 23 is unwound while-Fig. 1 shows the position thereof when said spring is wound up. The advantage of such a mechanism is obvious insomuch as it makes it impossible for the owner of the sures the advertiser that his advertising will be properly displayed. i

It will be understood that the strips 36 may be changed and replaced by strips containing other advertising matter when desired. This may be done by loosening the bearings 29 and removing the shafts 30 with the spools thereon.

It will be understood that some changes may be made in the details of the construction of our device, without departing from its essential features, and it is our intention to cover by this application any such changes which may be included within the scope of the following claims.

We claim as our invention:

1. In a device of the class described," the combination of an exhibitor, a spring motor for operating the said exhibitor having a winding means, a clock designed to periodically controlsaid exhibitor, a motor for operating said clock having a winding means, a member operatively connected with the first motor and arranged to stand in the path of access to the second winding means when the first motor is unwound and to move out of said path when the first motor is wound up. 7

2. In adevice of the class described, an operative mechanism, a spring motor for operating the same having a winding means, a second operative mechanism adapted to periodically control the said spring motor, a spring motor for operating said second mechanism having a winding means, and a device suitably mounted, and adapted to be moved to position in the path of access to said second winding means when the first spring motor is run down and moved to position out of said path when said first motor is wound up.

Des Moines, Iowa, March 13, 1914.

' FRANK R. DAVIS. CURTIS P. DAVIS. Witnesses:

M. WALLACE, S. ROBINSON. 

